replaced RO filters and now less water?

mopar9012

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Ive replaced all the filters on my RO unit including the membrane and the two DI filters. The membrane is 100gpd just like the old one. I've checked for kinks in the hoses. My "good" water flow seems to have decreased quite a bit and my waste water seems to be the same amount. Is it normal for a RO unit to have less "good" water flow right after the filters were replaced? I have enough flow going in from my sink because it worked just fine before I replaced the filters. I am just wondering if this is normal.
 
CTA or TFC

That sure is something to look at. Send it back and get the matching orifice.
For TFC......Did you run water through to prerinse your carbon and micron prefilters before you installed the membrane?
Is it the same brand? Check your orifice is installed and bypass system. Make sure the cleaning valve is fully closed.
 
Yeah... Sorry but I have no idea what most of that means. I don't see why new filters would change the the performance. The filters were the same brand I think.
 
It could be the tempature of the water. My filters do the same thing during the cooler months. I made water today and it took almost 5 hrs to make 5 gallons verse the usual 2-2.5 hrs and I haven't changed anything.
 
PutEmUp;910813 wrote: It could be the tempature of the water. My filters do the same thing during the cooler months. I made water today and it took almost 5 hrs to make 5 gallons verse the usual 2-2.5 hrs and I haven't changed anything.
my unit is also 50gpd so it takes me aprox 2.5 hours per 5 gallon's and noticed today making 10gallons it took longer than usuala , my waste is 3*1 ratio .
iv replaced all of my filters and membrane 5 weeks ago .
perhaps weather does effect it.
 
Temperature of the water absolutely affects performance of the membrane. Water is cold, molecules are closer together. Water is warmer (hot water will ruin a membrane, pronto), molecules are farther apart. Cold water takes longer to process.

Jenn
 
The colder, less output but higher purity. The warmer, the more product output but lower purity.
 
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